<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
  <h1>身体质量指数测试</h1>
  <input type="text" placeholder="请输入身高（米）"   v-model="h">
  <input type="text" placeholder="请输入体重（kg）"  v-model="w">
  <input type="submit" value="开始测试" @click="f()">
    <h3>测试结果;{{info}}</h3>
    <hr>
</div>
<!--引入axios和vue框架文件-->
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script>
    let v = new Vue({
        el:"body>div",
        data:{
          h:"",
          w:"",
            info:""
        },
        methods:{
          f(){
            //发出异步请求
            axios.get("/bmi?h="+v.h+"&w="+v.w).then(function (response){
              v.info=(response.data)
            })

          }
        }
    })
</script>
</body>
</html>